Chia Blockchain send_transaction Cross-Site Request Forgery

The primary impact of this CSRF vulnerability lies in the potential for unauthorized transactions. An attacker could craft malicious requests that, if a user is authenticated and interacts with a compromised Chia Blockchain interface, could result in the transfer of funds or other unintended actions. The vulnerability's high complexity requirement suggests that exploitation would likely necessitate social engineering or a sophisticated attack chain to trick a user into unknowingly executing the malicious request. The "by design" rejection from the bug bounty program highlights the vendor's perspective that host security is the user's responsibility, emphasizing the need for careful user awareness and secure configuration.

Users of Chia Blockchain 2.1.0 who do not implement robust host security measures are at risk. This includes individuals running Chia Blockchain nodes on shared hosting environments or those who are not vigilant about phishing attacks and other social engineering tactics. Users relying on default configurations without additional security layers are particularly vulnerable.

• python / chia blockchain: Monitor Chia Blockchain logs for unusual transaction patterns or requests originating from unexpected sources.

# Example: Check for suspicious requests in the transaction log
import re
with open('/path/to/chia/blockchain/transaction.log', 'r') as f:
    for line in f:
        if re.search(r'unexpected_source', line):
            print(f'Potential CSRF attack detected: {line}')

• generic web: Inspect HTTP requests to /send_transaction for unexpected origins or referers. • generic web: Review access logs for requests containing suspicious parameters or payloads.

1. 2026-02-25Disclosure

   disclosure

2. 2026-02-25PoC

   poc

1. Reserviert2026-02-25
2. Veröffentlicht2026-02-25
3. Geändert2026-02-27
4. EPSS aktualisiert2026-03-23

Due to the absence of a direct patch, mitigation focuses on strengthening host security. Users should implement robust input validation and output encoding on the Chia Blockchain interface to prevent malicious requests from being processed. Employing Content Security Policy (CSP) headers can further restrict the sources from which scripts can be executed, reducing the attack surface. Regularly review and update security configurations, and educate users about the risks of phishing and other social engineering tactics. Consider implementing rate limiting on sensitive endpoints like /send_transaction to mitigate potential abuse.